1. The introduction or release of a product, service, or initiative without any errors, defects, or problems
The company celebrated a flawless launch of their new smartphone model.
A empresa celebrou o lançamento impecável do seu novo modelo de smartphone.
2. A successful and smooth beginning of an operation, project, or event with no complications
After months of preparation, the rocket had a flawless launch into orbit.
Após meses de preparação, o foguete teve um lançamento impecável em órbita.